Open-Vocabulary Remote Sensing Image Segmentation (OVRSIS), an emerging task that adapts Open-Vocabulary Segmentation (OVS) to the remote sensing (RS) domain, remains underexplored due to the absence of a unified evaluation benchmark and the domain gap between natural and RS images. To bridge these gaps, we first establish a standardized OVRSIS benchmark (OVRSISBench) based on widely-used RS segmentation datasets, enabling consistent evaluation across methods. Using this benchmark, we comprehensively evaluate several representative OVS/OVRSIS models and reveal their limitations when directly applied to remote sensing scenarios. Building on these insights, we propose RSKT-Seg, a novel open-vocabulary segmentation framework tailored for remote sensing. RSKT-Seg integrates three key components: (1) a Multi-Directional Cost Map Aggregation (RS-CMA) module that captures rotation-invariant visual cues by computing vision-language cosine similarities across multiple directions; (2) an Efficient Cost Map Fusion (RS-Fusion) transformer, which jointly models spatial and semantic dependencies with a lightweight dimensionality reduction strategy; and (3) a Remote Sensing Knowledge Transfer (RS-Transfer) module that injects pre-trained knowledge and facilitates domain adaptation via enhanced upsampling. Extensive experiments on the benchmark show that RSKT-Seg consistently outperforms strong OVS baselines by +3.8 mIoU and +5.9 mACC, while achieving 2× faster inference through efficient aggregation.

Time series analysis plays a vital role in fields such as finance, healthcare, industry, and meteorology, underpinning key tasks including classification, forecasting, and anomaly detection. Although deep learning models have achieved remarkable progress in these areas in recent years, constructing an efficient, multi-task compatible, and generalizable unified framework for time series analysis remains a significant challenge. Existing approaches are often tailored to single tasks or specific data types, making it difficult to simultaneously handle multi-task modeling and effectively integrate information across diverse time series types. Moreover, real-world data are often affected by noise, complex frequency components, and multi-scale dynamic patterns, which further complicate robust feature extraction and analysis. To ameliorate these challenges, we propose FusAD, a unified analysis framework designed for diverse time series tasks. FusAD features an adaptive time-frequency fusion mechanism, integrating both Fourier and Wavelet transforms to efficiently capture global-local and multi-scale dynamic features. With an adaptive denoising mechanism, FusAD automatically senses and filters various types of noise, highlighting crucial sequence variations and enabling robust feature extraction in complex environments. In addition, the framework integrates a general information fusion and decoding structure, combined with masked pre-training, to promote efficient learning and transfer of multi-granularity representations. Extensive experiments demonstrate that FusAD consistently outperforms state-of-the-art models on mainstream time series benchmarks for classification, forecasting, and anomaly detection tasks, while maintaining high efficiency and scalability. Code is available at https://github.com/zhangda1018/FusAD.

Vision-Language Models (VLMs) such as CLIP have demonstrated outstanding performance in cross-modal tasks, but the prohibitive computational cost hinders practical deployment. Although Knowledge Distillation (KD) provides a promising compression paradigm, most existing methods rely heavily on feature imitation and contrastive relations without explicit fine-grained alignment. Additionally, they do not fully leverage the multimodal interaction knowledge from the teacher model, restricting cross-modal semantic alignment. To address these challenges, we propose KAID, a Knowledge-Aware Interactive Distillation method for VLMs. Specifically, we first pretrain a large CLIP teacher model with domain few-shot labels and store text features as category vectors. Then, an Image Feature Matching (IFM) module is introduced to calculate the feature distribution of teacher-student models with improved cosine similarity, which achieves hierarchical knowledge transfer from global to local levels and enhances the fine-grained perception of student model through joint optimization. Moreover, a Pixel-Wise Alignment (PWA) module is constructed between the teacher's text features and the student's image features, employing a cross-modal attention mechanism to establish semantic associations, while a Text-guided Pixel alignment Loss function (TPloss) is concurrently designed to enhance the student's comprehension capabilities. Ultimately, the well-trained student model is used for inference. Extensive experiments on 11 datasets validate the effectiveness of our method. Specifically, our method achieves average improvements of 2.14% and 2.40% on the base and new classes across these datasets.

Multimodal semantic segmentation shows significant potential for enhancing segmentation accuracy in complex scenes. However, current methods often incorporate specialized feature fusion modules tailored to specific modalities, thereby restricting input flexibility and increasing the number of training parameters. To address these challenges, we propose StitchFusion, a straightforward yet effective modal fusion framework that integrates large-scale pre-trained models directly as encoders and feature fusers. This approach facilitates comprehensive multi-modal and multi-scale feature fusion, accommodating any visual modal inputs. Specifically, our framework achieves modal integration during encoding by sharing multi-modal visual information. To enhance information exchange across modalities, we introduce a multi-directional Modality Adapter module (MoA) to enable cross-modal information transfer during encoding. By leveraging MoA to propagate multi-scale information across pre-trained encoders during the encoding process, StitchFusion achieves multi-modal visual information integration during encoding. Extensive comparative experiments demonstrate that our model achieves state-of-the-art performance on four multi-modal segmentation datasets with minimal additional parameters. Furthermore, the experimental integration of MoA with existing Feature Fusion Modules (FFMs) highlights their complementary nature. Our anonymous code is https://anonymous.4open.science/r/StitchFusion_V2-E777

Scalable Vector Graphics (SVG) has become an indispensable technology in front-end development and UI/UX design, due to its inherent advantages in scalability, editability, and rendering efficiency. In the creation of vector graphics, while expressing creative concepts is straightforward, translating them into precise digital artworks is often challenging and time-consuming. To overcome this technical bottleneck and achieve intelligent conversion from concept to final product, we have constructed SVG-1M, a large-scale dataset of high-quality SVG samples with paired textual descriptions. Through innovative data augmentation and annotation processes, we built precisely aligned ''Text instruction-SVG code'' training pairs, with a subset enhanced by Chain-of-Thought (CoT) annotations. This provides rich semantic supervision signals for model learning. Based on this dataset, we propose SVGen, an end-to-end generative model capable of directly converting natural language descriptions into SVG code. This design addresses the challenges of generating semantically accurate vector graphics while preserving complete structural information. We explored various training strategies and introduced a progressive curriculum learning approach, optimized with reinforcement learning algorithms. Notably, this study innovatively applies the CoT paradigm to vector graphics generation, effectively enhancing both the accuracy and interpretability of SVG synthesis. Experimental validation demonstrates that SVGen exhibits significant advantages over general large models in terms of SVG generation quality, while also surpassing optimization-based rendering methods in generation efficiency. The proposed method enables intelligent conversion between natural language and vector graphics, enabling novel workflows like real-time AI-assisted design iteration. Code, model, and data is released at: https://github.com/gitcat-404/SVGen

Limited availability of labeled data presents a significant challenge for underwater acoustic target recognition (UATR), often resulting in model overfitting and poor generalization. Data augmentation (DA) has been a major strategy to increase effective data diversity, yet prevailing methods often lack explicit mechanisms to discriminate the informational value of augmented samples. This letter presents two DA approaches, Loss-Aware Trimming Augmentation (LATA) and Learnable Weight-Based Augmentation (LWBA), to enhance the UATR task under restricted annotated data scenarios. LATA adaptively prunes both excessively difficult and trivial augmented samples based on real-time loss evaluation, while LWBA introduces sample-wise learnable weights to balance the influence of each augmentation during model training. Experiments conducted on the public DeepShip dataset validate the superiority of the proposed framework, with an average improvement of 3.44% in accuracy and 3.49% in F1-score compared to the baselines.

Change detection is a critical task in the remote sensing image (RSI) analysis, widely used in fields such as land cover change and urban planning. With the introduction of foundational models like SAM in computer vision (CV) tasks, their advantages in zero-shot and interactive segmentation have enabled rapid application across diverse visual scenarios. Current research in change detection focuses on designing learnable plug-in modules and fine-tuning foundational models using large annotated data. However, constructing comprehensive datasets and designing effective additional modules pose significant challenges, leading to high costs. To address these issues, we propose a model named Meta-CD for remote sensing change detection (RSCD) with limited data. By introducing a simple fine-tuning module, this model is trained on limited datasets and quickly adapts to change detection tasks. Specifically, we integrate an additional CNN as an adapter with the foundational model FastSAM. Initially, we freeze the parameters of FastSAM and train only the parameters of the introduced adapter and decoder to generate change confidence maps. Subsequently, to enhance the quality of change detection, we introduce a novel pixel-level binarization module that learns the threshold for each pixel in the original image. This module combines the thresholds with the confidence maps to output binary change detection maps, filtering out invalid change pixels. Experimental results demonstrate that our method outperforms other competing approaches on limited datasets and has great zero-shot learning ability. Our code is available at Meta-CD.

Vision foundation models (VFMs) have rapidly gained application across various visual scenarios due to their robust universality and generalization capabilities. However, when directly applied to remote sensing images (RSIs), their performance often falls short owing to the unique inherent imaging characteristics. Moreover, these models typically suffer from inadequate feature extraction capabilities and unclear boundary detection because of the lack of specialized knowledge in the remote sensing (RS) field. To ameliorate these issues, we propose SFCD-Net, a novel network integratingSAM withfeature interaction for RSchangedetection. To be specific, we first introduce a parameter-efficient fine-tuning (PEFT) method that allows the model to learn domain-specific knowledge, thereby enhancing its fine-grained feature extraction capability. Second, an innovative bitemporal feature interaction (BFI) module is designed to improve the model’s sensitivity to changes. Finally, we use the boundary loss function (BLF) to enhance the model’s ability to process boundary details, thereby improving its performance in recognizing boundaries and small targets. Through a series of ablation studies and comparative experiments, we demonstrate that the proposed SFCD-Net significantly improves model adaptability in RS tasks under limited computational resources, outperforming existing models.